Rosen Calle

Toronto Maple Leafs acquire	Date	Colorado Avalanche acquire
Calle Rosen	February 24, 2020	Michael Hutchinson

Toronto Maple Leafs acquire	Date	Colorado Avalanche acquire
Tyson Barrie Alex Kerfoot 2020 6th round pick	July 1, 2019	Nazem Kadri Calle Rosen 2020 3rd round pick